Mechanical movement



(No Model.)

' G. O. EMMONS.

ME-GHANIOALMOVBMENT.

No. 432,386. Patented July 15 1890.

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UNITED STATES PATENT OFFICE.

CHARLES C. EMMONS, OF PITTSBURG, PENNSYLVANIA.

MECHANICAL MOVEMENT.

SPECIFICATION forming part of Letters Patent No. 432,386, dated July 15,1890.

Application filed May 1, 1890.

To all whom it may concern.-

Be it known that I, CHARLES C. EMMoNs, of Pittsburg, in the county ofAllegheny and State of Pennsylvania, have invented certain new anduseful Improvements in Mechanical Movements; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it pertains tomake and use it, reference being had to the accompanying drawing, whichforms part of this specification.

My invention relates to an improvement in mechanical movements; and itconsists in the combination of a driving-shaft provided with twoseparate cams, a rocking lever provided with two prongs at its lower endto engage with the cams, and a slot through its upper end, aconnecting-rod, an oscillating lever placed loosely upon the drivenshaft and carrying a spring-actuated dog, and a driven shaft providedwith a ratchet with which the dog engages, as will be more fullydescribed hereinafter. V

The object of my invention is to provide a mechanical movement forconverting a rotary motion into an intermittent oscillating movement,whereby the driven shaft is given its regulated movement duringonequarter of the revolution of the driving-shaft, and to provide amovement which, while especially adapted to plaiting-machines, can beused wherever a movement of this nature is necessary.

The accon'lpanying drawing represents a side elevation of a movementwhich embodies my invention.

A represents the driving-shaft, which is operated from any suitablesource, and to which the two cams are rigidly secured out of line witheach other. Pivoted at O is the rocking lever D, which is provided withtwo prongs G at its lower end, and which are out of line with eachother, so as to be alternately operated by the two cams B. Through theupper end of the lever D is formed a slot H, to which the lower end ofthe connecting-rod I is secured; and to the opposite end of this rod Ifrom the lever D is fastened the oscillating lever J, placedloosely'upon the driven shaft L, and which lever J is provided with aslot through its upper end and an arm or projec- Serial No. 350,161. (Nomodel.)

tion 0 at its lower end. This arm 0 extends at an angle to the lever J,and pivoted to this arm is the pawl P, which has its point held incontact by means of the spring Q with the ratchet-wheel R, which isrigidly secured to the driven shaft L. By means of the slots in the twolevers D J the connecting-rod I can be adjusted so as to cause the pawlP to move the ratchet-wheel R from one to nine teeth. The shaft A has aconstant rotary motion, and having the two cams B has at all times twopoints of contact with the lever D through its two prongs G. The shaft Amoves the lever D forward at its upper end during the first quarter ofthe shafts revolution, then allows the lever D to rest during the secondquarter of its revolution, moves the lever D back during the thirdquarter of its revolution, and then allows the lever D to rest duringthe fourth quarter of its revolution. Thus it will be seen that at everyrevolution of the shaft A the shaft L is moved a certain regulated,distance, which is determined by the position of the ends of theconnecting-rod I in the slots of the two levers D .I. A As above stated,this movement is adapted for any place where a rotary is to be convertedinto an intermittent oscillating movement.

Having thus described my invention, I claim 1. The combination of thedriving-shaft provided with two cams, a slotted rocking lever providedwith two prongs to engage with the two cams,a connecting-rod, anoscillating lever mounted upon the driven shaft and carrying a dog orpawl, and the driven shaft provided with a ratchet-wheel, substantiallyas shown and described.

2. The combination of the driving-shaft provided with two cams, arocking lever provided with two prongs against which the cams operate,the driven shaft, a lever connected therewith, and a rod connecting therocking lever and the driven-shaft lever, substan-

